Applied Chemistry for Engineering (공업화학)

The Korean Society of Industrial and Engineering Chemistry (한국공업화학회)
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The Monitoring Study of Exchange Cycle of Automatic Transmission Fluid

자동변속기유(ATF) 교환주기 모니터링 연구

  • Lim, Young-Kwan (Research Center, Korea Institute of Petroleum Management) ;
  • Jung, Choong-Sub (Research Center, Korea Institute of Petroleum Management) ;
  • Lee, Jeong-Min (Research Center, Korea Institute of Petroleum Management) ;
  • Han, Kwan-Wook (Research Center, Korea Institute of Petroleum Management) ;
  • Na, Byung-Ki (Department of Chemical Engineering, Chungbuk National University)
  • 임영관 (한국석유관리원 석유기술연구소) ;
  • 정충섭 (한국석유관리원 석유기술연구소) ;
  • 이정민 (한국석유관리원 석유기술연구소) ;
  • 한관욱 (한국석유관리원 석유기술연구소) ;
  • 나병기 (충북대학교 화학공학과)
  • Published : 2013.06.10
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Abstract

Automatic transmission fluid (ATF) is used as an automatic transmission in the vehicle or as a characterized fluid for automatic transmission. Recently, vehicle manufacturers usually guarantee for changing fluids over 80000~100000 km mileage or no exchange. However, most drivers usually change ATF below every 50000 km driving distance when driving in Republic of Korea according to a survey from the Korea Institute of Petroleum Management which can cause both a serious environmental contamination by the used ATF and an increase in the cost of driving. In this study, various physical properties such as flash point, pour point, kinematic viscosity, dynamic viscosity at low temperature, total acid number and four-ball test were investigated for both fresh ATF and used ATF after the actual vehicle driving distance of 50000 km and 100000 km. It was shown that most physical properties were suitable for the specification of ATF, but the foam characteristics of the used oil after running 100000 km was unsuitable for the specification of fresh ATF. Therefore, the exchange cycle of ATF every 80000~100000 km driving distance is recommended considering great positive contributions to preventing environmental pollution and reducing driving cost.

자동변속기유(ATF)는 자동차의 자가변속 또는 자동변속에 사용되는 동력전달 유체로서 최근 자동차사에서는 무점검 무교환 또는 80000~100000 km를 주행한 뒤, 교체하도록 권장하고 있다. 하지만 한국석유관리원의 설문조사에 의하면 많은 운전자들이 50000 km 이하에서 자동변속기유를 교환하고 있으며, 이는 차량유지비의 증가 및 폐유에 의한 환경오염으로까지 발전될 수 있다. 본 연구에서는 신유와 실제 차량 주행 후 회수된 사용유(50000 km, 100000 km)에 대한 대표적 물성으로서 인화점, 동점도, 저온점도특성, 전산가, 윤활성 등에 대해 분석하였다. 분석결과 기포성을 제외한 모든 물성이 신유규격에 적합하였으며, 50000 km와 100000 km 주행 후 회수된 자동변속기유의 물성차이는 크지 않았다. 따라서 자동차사에서 권장하고 있는 교환주기(80000 km 이상)에서 자동변속기유를 교환하여도 큰 문제가 없을 것이라 판단되며, 이로 인해 비용절감 및 환경오염 방지에 기여할 수 있을 것이라 사료된다.

Keywords

References

  1. D. Antoni, V. V. Zverlow, and W. H. Schwarz, Appl. Microbiol. Biotechnol., 77, 23 (2007). https://doi.org/10.1007/s00253-007-1163-x
  2. J. Sachs, J. Franklin Inst., 144, 21 (1897).
  3. Korea Automobile Manufacture Association (http://www.kama.or.kr/).
  4. F. Qureshi, C. D. Tipton, and M. E. Huston, Tribology Series, 39, 219 (2001). https://doi.org/10.1016/S0167-8922(01)80109-7
  5. F. Owrang, H. Mattsson, J. Olsson, and J. Pedersen, Thermochim. Acta, 413, 241 (2004). https://doi.org/10.1016/j.tca.2003.09.016
  6. P. Agamuthu, O. P. Abioye, and A. Abdul Aziz, J. of Hazd. Mater., 179, 891 (2010). https://doi.org/10.1016/j.jhazmat.2010.03.088
  7. Manual for regular inspection in Hyundai motor company (http://www.hyundai.com/kr).
  8. Korea Institute of Petroleum Management (http://www.kpetro.or.kr).
  9. A. S. Abdul, T. L. Gibson, and S. F. Kia, J. of Hydrology, 121, 133 (1990). https://doi.org/10.1016/0022-1694(90)90229-Q
  10. Business act for quality standard, inspection method and inspection fee of petroleum product, Ministry of Commerce, Industry and Energy, 2011-302.
  11. Korean Standard M 2125 : 2007, Automatic transmission fluids.